WO2001058996A2 - Materiaux d'emballage transparents ou partiellement transparents colores avec des colorants - Google Patents

Materiaux d'emballage transparents ou partiellement transparents colores avec des colorants Download PDF

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Publication number
WO2001058996A2
WO2001058996A2 PCT/EP2001/001524 EP0101524W WO0158996A2 WO 2001058996 A2 WO2001058996 A2 WO 2001058996A2 EP 0101524 W EP0101524 W EP 0101524W WO 0158996 A2 WO0158996 A2 WO 0158996A2
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WO
WIPO (PCT)
Prior art keywords
dye
packaging material
natural
packaging
nature
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Application number
PCT/EP2001/001524
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German (de)
English (en)
Other versions
WO2001058996A3 (fr
Inventor
Klaus Rieblinger
Ulrich Moosheimer
Gottfried Ziegleder
Original Assignee
Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. filed Critical Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
Priority to AU48312/01A priority Critical patent/AU4831201A/en
Priority to US10/203,511 priority patent/US20030138653A1/en
Priority to CA002401751A priority patent/CA2401751A1/fr
Priority to EP01921279A priority patent/EP1268634A2/fr
Publication of WO2001058996A2 publication Critical patent/WO2001058996A2/fr
Publication of WO2001058996A3 publication Critical patent/WO2001058996A3/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
    • B65D81/30—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants by excluding light or other outside radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B65D65/40—Applications of laminates for particular packaging purposes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
    • C08K5/0041—Optical brightening agents, organic pigments
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • Y10T428/31909—Next to second addition polymer from unsaturated monomers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • Y10T428/31938—Polymer of monoethylenically unsaturated hydrocarbon

Definitions

  • the present invention relates to packaging that is at least partially translucent.
  • the packaging is intended in particular for food, cosmetics and pharmaceuticals, but also for other products containing natural products or natural substances, which contain natural dyes or are dyed with natural or nature-identical dyes.
  • the invention relates to the use of at least partially translucent packaging for food, cosmetics and pharmaceuticals, which are colored with dyes approved for this purpose.
  • Colorants in food are often naturally present and thus also come as natural components in food preparations.
  • the natural coloring agents found in food are mainly coloring agents from the groups of carotenoids, chlorophylls, betalaines, anthocyanidins and flavanones.
  • Oxygen excited in this way is able, for example, to directly oxidize the double bonds of unsaturated fatty acids, as a result of which changes in quality occur which become clear to the consumer as the fat fraction becomes rancid.
  • This reaction is directly dependent on the light and does not require an induction phase as in classic 0 fat auto-oxidation. In order to prevent such a photosensitized reaction, absolute light protection has so far been required.
  • Dyes in packaging films serve to protect the packaged goods from light, but also serve as an optical eye-catcher for the customer.
  • the 5 common synthetic dyes and pigments used are characterized, among other things, by their light stability. Overviews can be found in W. Baumann and A. Muth, Maschinen & Lacke 1 (2); Facts and figures on environmental protection, Springer-Verlag 1997, or in lexical works such as Ullmann or Römpp.
  • the degradation reactions can be prevented by keeping the reactants oxygen and light away (see, for example, K. Rieblinger, G. Ziegleder: Packaged foods that are prone to light, complex chlorophyll-containing fillings, magazine for the food industry (ZFL) 01/98 or M. Krug, G.
  • Ziegleder Light susceptibility of white chocolate, Part I (fat oxidation through sensitizers) and Part II (better shelf life with protective gas packaging), Journal for the Confectionery Industry (ZSW) 1-2 / 98, 24-27 and ZSW 3/98, 102 -104).
  • ZSW Confectionery Industry
  • UV absorbers, antioxidants and biocides into the packaging material (see, for example, K. Rieblinger et al., Light protection for foods - partial protection by means of UV filters in the packaging - ZFL 6/98, 36-38 or Campden & Charley Wood - Food Research Association, New Technologies Bulletin No. 17 09/1998, 1-26).
  • the object of the present invention is therefore to provide transparent or at least partially transparent packaging materials which do not have the above disadvantages.
  • Packaging materials are provided with dyes that have the same or a similar absorption spectrum as the dyes of the goods to be packaged. These are preferably the same dyes.
  • the dyes are also preferably organic and possibly metal-containing dyes.
  • dyes is to be understood broadly in the present case and includes all colorants with the exception of natural and synthetic inorganic pigments.
  • the invention is preferably limited to colorants which are soluble in solvents or binders, that is to say a group which also does not include organic pigments.
  • the dyes of this invention are particularly preferably organic dyes which may or may not contain metal, and very particularly preferably those which are listed at the beginning.
  • packaging materials are provided which contain natural and / or nature-identical dyes. Food, pharmaceuticals, cosmetics or other perishable goods that are or contain natural products are particularly suitable as packaged goods. The same natural ones are particularly preferred
  • Dyes (possibly synthetically produced) incorporated into the packaging material, which are also contained in the goods to be packaged.
  • the use of transparent or partially transparent packaging materials with such dyes is provided, which were also used to color the goods to be packaged.
  • These can also be synthetic dyes.
  • the packaging materials according to the invention can also be parts of a packaging, e.g. Windows in otherwise opaque packaging or inner / outer bags.
  • Natural dyes are also frequently contained in cosmetics, pharmaceuticals containing natural constituents and the like. if necessary, dyes are added. Since they are consumed or come into contact with the human body, these must meet certain requirements.
  • the attached Table III lists the dyes permitted in accordance with Appendix 3 to ⁇ 3 of the announcement of the new version of the Cosmetics Ordinance of October 7, 1997 in the version of December 18, 1998, and the attached Table IV corresponds to the Appendix from the Drug Dyes Ordinance (AMFarbV) of August 25. 82 in an EEA Implementation Act of April 27, 1993.
  • dyes are selected and incorporated into at least partially transparent packaging materials for corresponding goods in such a way that the dyestuff (s) of the packaging material is / are identical to those of the packaged goods or at least essentially has the same absorption spectrum, these dyes will specifically have those wavelengths , the are critical for the contents (eg a food), filter out of the light spectrum, while "harmless" wavelengths can pass through.
  • the shelf life of the contents is improved and possible spoilage is delayed because those wavelengths which excite the photosensitizer and subsequently spoilage no longer arrive on the surface of the goods to be protected.
  • a dye or pigment with different absorption properties only filters out parts of the critical spectrum, since its absorption spectrum does not exactly match that of the color (s) or dyes.
  • Packaging material maintain its function over the entire storage period of the packaged goods.
  • the dyes themselves must therefore be sufficiently stable. While a number of dyes have this stability in or on the packaging material without further ado (that is, at least when spatial separation of potentially critical substances in the packaged material, such as fatty acids or fats in food, is not itself attacked), it can be the case with other such dyes it should be desirable to ensure their durability in or on the packaging material by means of suitable measures. Above all, this includes excluding oxygen or reducing the access of oxygen to the dye.
  • the dye - possibly with the exclusion of oxygen - directly into the packaging material for example as a component of the plastic material or the like for foils to be extruded or otherwise produced, or as an intermediate layer in a multilayer Packaging, for example a laminated film. It is also possible to protect the dye from oxygen by means of a protective lacquer or a similar cover if it is present as or in a coating material applied to the packaging material (for example glass or a less flexible plastic material).
  • the present invention accordingly provides transparent packaging materials which, taking into account the measures required in each case, contain natural or nature-identical dyes, for example substances which occur in food, such as riboflavin, hemoglobin or chlorophyll, and are stable for a sufficiently long time, as a rule over several weeks or even months , This is achieved, for example, if these or similarly behaving dyes are incorporated into the material from which transparent films are drawn, extruded or produced in a different way, for example in polyethylene, polypropylene or polyethylene terephthalate.
  • the packaging materials according to the invention can offer other advantages.
  • some natural or nature-identical dyes are not stable due to the photosensitization described above, mostly in the presence of oxygen; they are themselves subjected to a chemical reaction and fade or change their color in the process. If such dyes are used in the packaging material according to the invention and if they are applied or incorporated onto the packaging material in such a way that they fade with the naked eye for several weeks or months when exposed to light, this property can be used for a display function of the packaging material: of the packaging, the dealer or consumer can see whether the packaging has been exposed to light for too long.
  • the packaging material used can be translucent, but does not necessarily have to be.
  • the dye in or on the packaging should be so stable that it does not completely fade within a few days. It is therefore not desirable to expose it in or on the packaging to an oxidizing environment if it naturally fades very quickly in the presence of oxygen. Preference is therefore also given in this embodiment to incorporation into a material which at least delays the entry of oxygen, so that only the areas near the surface - possibly quickly - fade, while the dye in the core of the packaging material is retained for a longer time, or the layering of the dye-containing layer with a protective layer.
  • a dye is incorporated into a transparent packaging material in such a way that within about 2-36, preferably up to 12 weeks Color weakening occurs by about 15 to 70%, so that on the one hand it fulfills the protective function described, but on the other hand it can also indicate the aging of the stored food or the access of light or oxygen to it.
  • This is achieved, for example, by incorporating moderately stable dyes into coating materials that are applied to the transparent packaging material (e.g. a color, a glass), or by incorporating dyes that are less resistant to oxidation into a coating varnish that is covered with a protective varnish on the packaging material.
  • organic, optionally metal-containing dyes are particularly suitable for the present invention.
  • Dyes which occur naturally in foods such as chlorophyll, riboflavin, carotenes, carotenoids, hemin or myoglobin and their derivatives, are particularly preferred.
  • Chlorophyll in the packaging material is suitable for all chlorophyll-containing foods, for example. This primarily includes vegetable oils (especially olive oil, walnut oil or pumpkin seed oil) and cocoa butter (part of white chocolate) that have a high fat content, but also foods such as pasta colored with spinach or other green vegetables, baby food with spinach, broccoli and those containing them Food like frozen pizzas, dry soups, dry herbs.
  • Riboflavin can be added especially to those packaging materials which are intended for milk, milk-containing foods and milk products, yeast-containing products and riboflavin-colored and / or vitaminized products.
  • the packaging of products containing carotenoids and products containing carotenes and / or sensitizers should contain carotenes and / or carotenoids. This is because carotenes and carotenoids compete with the sensitizers with regard to their interaction with light and thus prevent / reduce photosensitized fat oxidation; Carotenes and
  • the use of hemin and / or myoglobin and / or their derivatives is advantageous for meat and meat products.
  • Substances listed in Table I above can be incorporated into packaging materials in a suitable manner. Dye mixtures can of course also be used.
  • the packaging of cosmetics and pharmaceuticals is the one approved for this Contain dyes (see Tables II and III).
  • the at least partially transparent packaging for such goods contains the (or more) dye (s) with which the goods to be packaged have been colored and / or which are naturally contained therein.
  • the dye or dyes can be of natural origin, nature-identical or partially or fully synthetic. Examples of such packaging are dragee films, glass or plastic bottles.
  • L. Santamaria, G. Prino List of the Photodynamic Substances, Res. Progr. Org. Biol. Med. Chem. 3 (1972), 11-35; For example, an extract from St. John's wort has a sensitizing effect on light.
  • the packaging materials according to the invention can either contain the dye or dyes incorporated directly into the transparent material or else have a coating or layer in which the dye contains the entire surface or (if only the display function is required) partially (for example as lettering or logo) is.
  • coating or layer material e.g. Paper / cardboard / plastics, adhesives, printing inks (flexo printing, gravure printing), paints or varnishes possible. Materials made from partially or completely renewable raw materials are also very suitable.
  • the material intended for the plastic is in principle not restricted, provided the dye is compatible with it.
  • Thermoplastics, elastomers, crosslinkable resins and the like can be used.
  • the packaging consists of a transparent plastic material or is intended to contain it, for example in the form of a window
  • the dye can be incorporated into the plastic or its uncrosslinked or uncured precursor before the shape of the packaging is formed, for example during extrusion, if this is the case plays a role in the design.
  • colored films unstretched “cast films”, shaped as flat, tubular, calender or blown films
  • plates tubes
  • blow-molded hollow articles eg bottles or wide-neck containers
  • injection molded articles e.g bottles or containers
  • Injection blow molded articles bottles, cups, cans, containers
  • the extrusion can be carried out with only one material or by coextrusion. If these are preforms, rigid packaging such as cups, bottles, trays or tubs, semi-rigid packaging, for example plastic trays, or soft packaging such as troughs, blisters or tubular bags can be produced from this, for example by thermoforming.
  • materials are suitable which adhere to a substrate as a coating or which can be processed into self-supporting layers (foils) other than by extrusion.
  • materials are suitable which adhere to a substrate as a coating or which can be processed into self-supporting layers (foils) other than by extrusion.
  • acrylic resins, polyurethane resins, epoxy resins or coatings which are produced with the aid of sol-gel processes, for example with the aid of hydrolysis / condensation of organically modified silanes and / or alkoxy compounds of other metals (“silane resins”).
  • silane resins organically modified silanes and / or alkoxy compounds of other metals
  • the dye can be added at a suitable stage in the production of the coating, for example added to the uncrosslinked resin compositions before the coating is applied.
  • the masses mentioned can then either be applied to a transparent or partially transparent substrate (for example plastic or glass) or processed into films, it being possible, for example, to obtain composite films by known processes.
  • a transparent or partially transparent substrate for example plastic or glass
  • the dye changes the color of the composite film.
  • Coatings can also be applied by known methods, for example by spin coating, spraying, painting and the like.
  • the dye may optionally also be present exclusively or additionally in an adhesive with which the various components are connected, e.g. a film with a plastic or glass substrate or several films that are joined to form a composite film.
  • Suitable adhesives are, for example, materials such as nitro or water-based paints, acrylic paints, sol-gel adhesives, polyurethanes, epoxy adhesives and the like.
  • a substrate made of glass or plastic for example a film
  • a substrate made of glass or plastic is coated by directly applying molecules or monomers with or without subsequent polymerization.
  • the light-absorbing layer is then applied over the entire surface or partially on this gas, water vapor and aroma barrier coating, for example by gluing on a film containing the dye, painting or printing.
  • This configuration also has the advantage that the gas, water vapor and aroma barrier can be increased drastically (by a factor of up to about 100), so that so-called MAPs (modified atmosphere packagings) are obtained.
  • MAPs modified atmosphere packagings
  • an SiO x layer can serve as UV protection to extend the life of the dye (eg chlorophyll).
  • the transmission, absorption, emission and / or reflection properties of the material change in relation to electromagnetic radiation, for example visible and / or UV light.
  • the presence of the dye can, if necessary, influence properties of the packaging material itself if it is a plastic material.
  • Such properties include an improvement in light stability, a modification of the biodegradability and / or an improvement in the barrier effect (for example increasing the O 2 barrier due to the oxygen-consuming effect of the dye).
  • FIG. 1 shows films coated with chlorophyll-containing lacquers
  • FIG. 2 shows films that have been exposed for some time.
  • FIG. 3 shows foils in which chlorophyll or hemin chloride was incorporated.
  • FIG. 4 shows a film containing riboflavin, in FIG. 4a this film is shown in unexposed form, in FIG. 4b after 7 weeks of exposure.
  • FIG. 5 shows masterbatches of plastics containing riboflavin and chlorophyll.
  • CHLO Erka chlorophyll type 111 (available from Ringe + Kuhlmann, Hamburg, water-soluble powder form.
  • CHL1 1.0 g chlorophyll powder (CHLO) was dissolved in 50 ml dist. Water dissolved. The 2% clear, green solution was used without further pretreatment.
  • CHL2 Erka chlorophyll type 111 as above, but as a 4% aqueous solution (2.0 g chlorophyll powder in 50 ml distilled water)
  • CHL3 Erka chlorophyll type 100/2 (available from Ringe + Kuhlmann, Hamburg, oil-soluble liquid). 0.15 g of chlorophyll was dissolved in 50 ml of 99% ethanol given. A green solution with undissolved particles formed which was filtered off with a 589 2 white band filter before use.
  • BOPP films EHB 16cm, Wolff company were on the inside of the roll (in the case of coating mixtures 5 to 7) or on the outside of the roll (in the case of
  • Coating mixtures 1 to 4 coated.
  • a piece of A4 paper was fixed on a glass plate with scotch tape.
  • the coating mixtures 5 to 7 were knife-coated with a nominal wet film thickness of 40 ⁇ m.
  • the layer flakes off the BOPP film surface 1 Intense dark green, well adhering and difficult to scratch off layer with many green streaks
  • FIGS. 1a and 1b show the same foils with color differences that had arisen after approx. 6 weeks of partial exposure (color weakening in the exposed area).
  • PET, PS, PE and PP were chosen as the film material.
  • the following parameters were chosen:
  • the chlorophyll is injected into the funnel in oil-soluble form (Erka Type 100/2 from Ringe + Kuhlmann, Hamburg) with the help of a metering pump. Speed of the screw: 15 rpm. 1 PET processing temperature: 260 ° C
  • Hemin chloride
  • Hemin chloride
  • Tapes thus obtained are shown in FIG. From top to bottom are shown four tapes made of PE, two tapes made of PS and one made of HDPE, which were colored with chlorophyll.
  • the bottom band shows a band of PS stained with hemin chloride.
  • the dye can of course also be worked into the plastic material before it is fed to a device for shaping the packaging material.
  • Figure 5 shows appropriately colored
  • Plastic granules in FIG. 5 a polyethylene colored with riboflavin and in FIG. 5b a polyethylene colored with chlorophyll.
  • Example 3 Plastic granules (masterbatch), in FIG. 5 a polyethylene colored with riboflavin and in FIG. 5b a polyethylene colored with chlorophyll.
  • Riboflavin Erka type 188 was incorporated into LDPE flat films in various concentrations (0.063% by weight or 0.19% by weight) using extrusion technology. During the 7-week exposure of the films colored yellow with riboflavin to a fluorescent lamp of the Lumilux Plus type (power: 30W), no change in color of the films was found.
  • Figure 4a shows the unexposed
  • Figure 4b the exposed film.
  • a polyethylene terephthalate film with a thickness of 12 ⁇ m is vacuum-coated with an SiO x layer.
  • a polyurethane adhesive (2-5g / m 2 )
  • a polyethylene film with a thickness between 30 and 100 ⁇ m is laminated to the PET film.
  • the PE film was extruded with the incorporation of 30 ml of Erka 100/2 chlorophyll (see above) per kg of plastic.
  • Example 4 was repeated, but the chlorophyll was contained in the polyurethane adhesive (Liofol UR 7222 + UR 6082/21, Henkel, Düsseldorf) instead of 100 g (type Erka 100/2) per kg ,
  • the polymethane adhesive mixed with chlorophyll was applied to the side of the film exposed to SiO x by means of a laboratory lamination system. After the roller application of the adhesive, the corona-pretreated PE film was fed in and pressed on the laminating unit.
  • the rate of oxygen uptake is a measure of fat oxidation.
  • the decrease in oxygen in the air space above the surface of an olive oil sample was measured. This sample was covered either with a fully transparent film or with one of the films 6 and 7. A sample which was kept in the dark was used as a reference.
  • Table II shows that the oxygen uptake of olive oil is reduced by the chlorophyll-containing films, depending on the amount of chlorophyll present in the film (film 7 contains twice as much chlorophyll as film 6). The uptake could be reduced with the more colored film to almost a third of the amount observed with a completely transparent film.
  • the comparison value of the sample kept in the dark shows the amount of oxygen absorbed, which cannot be avoided even with optimal light protection (e.g. in a metal canister).
  • Induction time is the period during which a vegetable oil is still intact. If the oil has been damaged, this can be seen in a reduced induction time (remaining durability).
  • Example 1 it could be increased by a factor of 3.
  • Hexanal served as a guideline for the determination of the fat oxidation products.
  • Table shows that even after 25 days of exposure, olive oil shielded by chlorophyll was not more oxidized than fully protected from light.
  • Table I Colorants approved for coloring food
  • Antimony max. 100 mg / kg
  • Zinc max. 50 mg / kg
  • Soluble barium compounds max. 5 mg / kg.
  • Betani ⁇ rot E 162 General •• ) and special requirements: Paper chromatography: With the butyl alcohol saturated with 2N hydrochloric acid as the solvent (increasing chromatography), betanine gives a single red spot with brownish streaks and little migration
  • Medicinal products within the meaning of Section 2 (I) of the Medicinal Products Act that are not manufactured in accordance with the provisions of Section 1 (I) and which are in circulation when the Ordinance comes into force may, in derogation from Section I (2), be used up to E1 10 yellow orange S 6 * Hydroxy-5 (4-sulfo ⁇ henylazo) -2- March 31, 1983 be placed on the market. naphlhalln sulionic acid, disodium salt
  • E 132 I ⁇ digacarmln 3,3'-Dio ⁇ to ( ⁇ , - r -b «ndollnl.5, 5'- shades (indigolin) dlsulfonic acid, disodium salt
  • E I6I xanthophylls are keto and / or E I72 elsen oxides Fe-O j ⁇ yFeO • nH_0 hydroxy derivatives of carolines and hydroslde a) flavoxanthine 5, B epoxy-5,8-dlhydro-p, p Carolin-EI 73 aluminum AI 3, loop ⁇
  • 2-Phenylbenz ⁇ pyr ⁇ llumsalzen they are usually hydroxylated derivatives; on aglycones, they contain the following antioxidants: Pelargo ⁇ ldln, cyanidin, PaeonidLn (peonidin), D ⁇ lphinidin (Oe ⁇ antidln), Petunidin, Malvldin; Anthocyanins may only be obtained from edible fruits or vegetables such as strawberries, mulberries, cherries, plums, raspberries, blackberries, black and ripe currants, red cabbage, red onions, cranberries, blueberries, aubergines, grapes and elderberries.
  • E I70 Caldum carbonate CaCO.

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Abstract

La présente invention concerne des matériaux d'emballage transparents ou partiellement transparents, comportant des colorants présentant le même spectre d'absorption que celui des colorants du produit à emballer, ou un spectre d'absorption semblable à celui des colorants du produit à emballer. L'invention concerne des matériaux d'emballage au moins partiellement translucides pour produits alimentaires, cosmétiques et pharmaceutiques qui contiennent des colorants naturels et/ou semblables à des colorants naturels. L'invention concerne en outre l'utilisation d'un colorant dans des matériaux d'emballage au moins partiellement transparents, pour l'absorption des rayons lumineux dans le domaine visible qui influent négativement sur la conservation des produits emballés ou à emballer dans lesdits matériaux d'emballage.
PCT/EP2001/001524 2000-02-10 2001-02-12 Materiaux d'emballage transparents ou partiellement transparents colores avec des colorants WO2001058996A2 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AU48312/01A AU4831201A (en) 2000-02-10 2001-02-12 Transparent or partially transparent packaging materials that are coloured by means of colours
US10/203,511 US20030138653A1 (en) 2000-02-10 2001-02-12 Transparent or partially transparent packaging materials that are coloured by means of colours
CA002401751A CA2401751A1 (fr) 2000-02-10 2001-02-12 Materiaux d'emballage transparents ou partiellement transparents colores avec des colorants
EP01921279A EP1268634A2 (fr) 2000-02-10 2001-02-12 Materiaux d'emballage transparents ou partiellement transparents colores avec des colorants

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10005783A DE10005783A1 (de) 2000-02-10 2000-02-10 Mit Farbstoffen gefärbte, transparente oder teiltransparente Packstoffe
DE10005783.7 2000-02-10

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WO2001058996A2 true WO2001058996A2 (fr) 2001-08-16
WO2001058996A3 WO2001058996A3 (fr) 2002-03-21

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EP (1) EP1268634A2 (fr)
AU (1) AU4831201A (fr)
CA (1) CA2401751A1 (fr)
DE (1) DE10005783A1 (fr)
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WO2005019940A1 (fr) * 2003-08-13 2005-03-03 Eastman Kodak Company Production de materiaux d'emballage partiellement translucides
EP2322579A1 (fr) * 2008-12-04 2011-05-18 Fuji Chemical Industry Co., Ltd. Procede et recipient pour empecher la decoloration d'un colorant carotenoide

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BE1016177A6 (nl) * 2004-09-03 2006-04-04 Resilux Werkwijze voor het vervaardigen van hydrofobe polymeren.
US8986808B2 (en) 2011-08-03 2015-03-24 Milo George Chlorophyll cooling agent for synthetic turf components
USD712250S1 (en) 2012-09-10 2014-09-02 The Hillshire Brands Company Packaging for food product
FR3081374B1 (fr) * 2018-05-25 2020-05-15 Bostik Sa Procede de fabrication d'emballages rigides a partir d'un substrat cartonne

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Publication number Priority date Publication date Assignee Title
WO2005019940A1 (fr) * 2003-08-13 2005-03-03 Eastman Kodak Company Production de materiaux d'emballage partiellement translucides
EP2322579A1 (fr) * 2008-12-04 2011-05-18 Fuji Chemical Industry Co., Ltd. Procede et recipient pour empecher la decoloration d'un colorant carotenoide
EP2322579A4 (fr) * 2008-12-04 2011-11-16 Fuji Chem Ind Co Ltd Procede et recipient pour empecher la decoloration d'un colorant carotenoide

Also Published As

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WO2001058996A3 (fr) 2002-03-21
US20030138653A1 (en) 2003-07-24
EP1268634A2 (fr) 2003-01-02
DE10005783A1 (de) 2001-09-20
CA2401751A1 (fr) 2001-08-16
AU4831201A (en) 2001-08-20

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